SOLVED: I updated my files and back-ported from Mint 14. Presto, no more problem. Hi,Firefox 17.0 and my OS generally are now very slow. For example, I can no longer watch anything in Youtube due to slow download speed even though I have a fast connection. When I pinged, using my internet provider's speed test, I currently have a download speed of 108 kbps versus 402 Kbps for upload.

by rebooting in Safe Mode (no change)rebooting without Firefox extensions (no change) checking system files accordiing to online advice on how to increase Firefox speed (the files were already okay)searching the forums for slow Firefox or OS or download speed

I do have eight Firefox extensions, including Skype buttons for Kopete, Windows Media Player, and Shockwave and Quicktime.I would be most grateful for any help to return my speed to what it was.

LeeVancouver, Canada

Last edited by Lee on Tue Nov 27, 2012 5:14 pm, edited 5 times in total.

Here's a small maybe. Go to edit, preferences, advanced, network tab in Firefox and look at 'override automatic cache management'. If that is a large number, check the box to override and turn that number down to whatever. Mine was by default 1 Gb. I turned it down to 25 Mb. It didn't affect my speed either way. I just didn't want Firefox saving all that krap.